Federal Register #2026-06465

FAA Airworthiness Directive Compliance for Airbus Canada BD5001A10 and BD5001A11 Aircraft

This opportunity concerns a new airworthiness directive (AD) issued by the Federal Aviation Administration (FAA) for Airbus Canada Limited Partnership Model BD5001A10 and BD5001A11 airplanes: - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEMs Highlighted: - Airbus Canada Limited Partnership (Type Certificate previously held by C Series Aircraft Limited Partnership (CSALP)) - Bombardier, Inc. - Products/Services Requested: - No procurement of products or parts; this is a regulatory compliance action - Service required: Compliance with AD 20260707 for 198 U.S.-registered Airbus Canada Limited Partnership BD5001A10 and BD5001A11 airplanes - Addresses unsafe condition of the outflow valve (OFV) DC motor - Prohibits dispatch under MMEL items 213303 and 213304, and if the AUTO PRESS FAIL crew alerting system message is displayed - Unique or Notable Requirements: - Operators must comply with operational prohibitions and procedures as specified in the AD - The directive is an interim action, with further rulemaking possible - Public comments are invited on the rule - Scope: - Affects 198 U.S.-registered aircraft - No specific part numbers or hardware procurement involved - Locations: - FAA Aviation Safety Office, Des Moines, WA - U.S. Department of Transportation, Docket Operations, Washington, DC

Description

This final rule airworthiness directive (AD) issued by the Federal Aviation Administration (FAA) addresses an unsafe condition discovered in Airbus Canada Limited Partnership Model BD5001A10 and BD5001A11 airplanes. The issue involves the outflow valve (OFV) direct current (DC) motor potentially becoming inoperative under high differential pressure conditions, which could lead to loss of cabin pressure control and other safety risks. The AD prohibits dispatching airplanes under certain Master Minimum Equipment List (MMEL) items and if a specific crew alerting system (CAS) message is displayed, effective April 17, 2026. The FAA invites comments on this interim action to mitigate the unsafe condition.

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